Lake Arthur, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lake Arthur, a town in Vermilion County, Louisiana.
Today
93°F
Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1pm. Sunny, with a high near 93. Heat index values as high as 102. North wind 0 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Lake Arthur
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 93°F | Sunny then Chance Showers And Thunderstorms | 0 to 10 mph N | 26% |
| Tonight | 77°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 10 mph SW | 16% |
| Wednesday | 94°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SW | 30% |
| Wednesday Night | 77°F | Mostly Clear | 0 to 5 mph S | 9% |
| Thursday | 93°F | Sunny then Showers And Thunderstorms Likely | 0 to 5 mph S | 55% |
| Thursday Night | 76°F | Showers And Thunderstorms Likely then Mostly Clear | 0 to 5 mph S | 55% |
| Friday | 93°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SE | 43% |
| Friday Night | 75°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 43% |
| Saturday | 93°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 38% |
| Saturday Night | 76°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph E | 38% |
| Sunday | 91°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 62% |
| Sunday Night | 76°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 62% |
| Monday | 91°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 64% |
| Monday Night | 77°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 64% |
Forecast source: National Weather Service (api.weather.gov) for Lake Arthur (30.080, -92.677). Updated through the day.
Growing snapshot for Lake Arthur
Last spring frost
Feb 10
First fall frost
Dec 11
Growing season
307 days
Hardiness zone
9a
More local growing data for Lake Arthur: nearby ZIP 70542 weather · frost dates · planting calendar · Louisiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lake Arthur 7 Sw, La (11 mi from Lake Arthur). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.